>> his campaign launched an assault on governor romney's record. >> mitt romney made $20 million in 2010, but paid only 14% in taxes. >> in the final days, president obama is making a closing argument that's part jab -- >> i think it's called romnesia. >> -- part promise. >> i will spend every waking hour trying to make your lives a little bit better. >> i'm counting on you -- >> leaving the two men in a close race to the finish with a tiny margin of undecided voters likely to make all the difference. ultimately it will be up to voters and historians to assess the president's term in office. among his accomplishments, the killing of osama bin laden, the passage of landmark but controversial health care reform, the restructuring of the american auto industry, averting a great depression, and keeping his promise to withdraw from iraq. >> the last 3 1/2 years will probably be viewed as one of the most tumultuous periods in american history. and having that steady hand that the president has, i think, has really benefitted our country. >> on the other side of the ledger, millions of american